The sky at the bottom of Qingxi is a phenomenon of plane mirror imaging, that is, the sky is a scene, and the water surface is imaged by a plane mirror in water, which is caused by light reflection.

1, plane mirror imaging is caused by light reflection, so it is the same as the formation principle of Zai Tian Qingxi basemap. So 1 is correct.

B, pinhole imaging reaction diagram is a straight line propagation light diagram, so B is wrong.

9. The decomposition of sunlight is a phenomenon of optical dispersion, which is caused by optical refraction. So, 9 is wrong.

D, correct vision, whether concave lens or convex lens, are refracted by light patterns. So, d is wrong.

So choose 1.